Bushing-removing tool



June 3, 1924. 1,496,303

E. T. DIERINGER BUSHING REMOVING TOOL Filed April 17. 1923 Patented June 3, 1924:.

ERNEST '1. DIERINGER. 0F BOLIVAR, OHIO.

BUSHING-REMOVING TOOL.

Application filed April 17, 1923. vSerial No. 632,670.

To all whom it may concern-1 Be it known that I, ERNEST T. DIERINGER, a citizen of the United States, residing at Bolivar, in the county of Tuscarawas and State of Ohio, have invented certain new and useful Improvements in Bushing-Removing Tools, of which the following is a specification.

This invention relates to tools for removing bushings from bearings and more particularly to a separable tool adapted to be easily and readily operated to remove bushings from more or less inaccessible points in a machine.

The objects of the invention are to pro vide a bushing removing tool comprising a pair of separable shanks provided with heads for engagement with the inner end of the bushing, the shanks having inwardly extending shoulders at opposite ends.

The above and other objects may be attained by constructing the tool in the manner illustrated in the accompanying drawing, in which Figure 1 is a sectional view through a bearing and bushing showing the tool inserted in position to remove the bushing;

Fig. 2, a detail perspective view of the two separable halves of the tool; and

Fig. 3, a view similar to Fig. 1, showing a modified form of the tool, especially adapted for use in removing bushings which are accessible at only one end.

Similar numerals of reference indicate corresponding parts throughout the drawing.

A hearing is indicated at 1 and provided with a bushing 2. Referring first to the preferred form of the invention shown in Figs. 1 and 2, the tool comprises a pair of similar substantially half round shanks 3 and at, each of which has a flat, inner face 5 terminating at one end in the inwardly disposed shoulder 6 arranged to engage the fiat face of the other member.

One of the members has a head 7 upon the shouldered end and the other member has a head 8 upon the opposite end. As shown in the drawings, these heads may be provided upon each end of each member, making each member reversible, thus increasing the life of the tool, as when the heads upon one end are worn, the opposite ends of the tools may be inserted into the bushing.

In operating the tool to Withdraw the bushing, the member at is first inserted to the position shown'in dotted lines in Fig. 1, and the member?) then inserted into the bushing and the head 8' thereof engaged with the bushing; in the position shown, after which the member 4: is pulled outward into the position shown in full lines in Fig. 1, the shoulders 6 at opposite ends of the members 3 and 4t engaging the adjacent flat face of the opposite member, holdin the tool distended within the bushing. punch or any other suitable tool may then be inserted from the other end of the bearing into engagement with the heads 7 and 8, and by striking upon the same, the bushing will be dislodged from the bearing.

In Fig. 8 is shown a modified form of the invention, in which the members 3 and 4 are of considerably greater length, the member 3 being provided with a head 8 upon the working end, while the member 4 is provided with the inner shouldered end 6 having the head 7, the outer ends-of the members being plain.

A filler strip or bar 9 is arranged to be inserted between the members 3 and 4 when the same are positioned within the bushing, both the members 3 and land the filler bar being screw threaded forming a continuous thread for the nut 10.

This form of tool is especially adapted for use in removing bushings from bearings where it is necessary to draw the bushing out from the same end of the bearing through which the tool is inserted.

After the members 3 and 4? are inserted as shown in Fig. 3, and the filler strip located in position, a tube or sleeve 11 is placed around the tool in engagement with the adjacent end of the bearing and a loose washer 12 placed over the tool and against the outer end of the sleeve 11, a nut 10 being screwed up into engagement with the washer 12. By turning the nut with a wrench or the like, the tool will thus be withdrawn from the bearing, pulling the bushing 2 therewith.

From the above, it will be obvious that a simple and efficient tool is provided for easily and quickly withdrawing bushings from bearings of any description, and the preferred form of the invention shown in Figs. 1 and 2 comprises only the two similar shanks which are interchangeable and which are quickly and readily positioned Within the bearing to remove the bushing therefrom.

I claim:

1. A tool of the character described com prising a pair of separable shanks, each having a head in its inner end, one of the shanks having a shoulder at the head end for engagement with the adjacent face of the other shank.

2. A tool of the character described comprising a pair of separable shanks, each having a head in its inner end and a shoulder upon one end of each shank for engagement with the adjacent face of the other shank.

A tool of the character described comprising a pair of similar shanks, each having a head at each end and a shoulder at one end for engagement with the adjacent face of the other shank.

at. A tool of the character described including a pair of similar shanks half round in cross section, each having a head at its inner end and a shoulder at one end for engagement with the adjacent face of the other shank.

In testimony that I claim the above, I have hereunto subscribed my name.

ERNEST T. DIERlNGER. 

